Machine for cooling coated containers



vis, 1943 Jgmmca 2,319,474

MACHINE FOR COOLINQ comm) QONTAINERS Original Filed July 26, 1939 4 Sheds-Sheet 1 y 13, 1943 J. F; PRICE 74 MACHINE FOR cooLme COATED CONTAINERS original Filed July 26, 19:59 4 SheetS-Shieet 2 I IfmIdJIml %9I(IJI INVENTOR.

-' JohnFprice" WfM y 8, 9. J. F. PRIICZE 2,319,474

MACHINE FOR C OQLI NG COATED CONTAINERS Original Filed Jul' zs, 1959 4 Sheets-Sheet :5

V INVENTOR.

Price M/M il 9 J. F. PRICE I "momma: fonppomm COATED connmmns Original Filed i 26, 19 39 4 shei -snt 4 INVENTOIQ." JohiiF Price BYw flwfy I ma a Mats, 194a T j July 26, 1939, Patent No. 2,302,053. 1 V lithe container is coated with wax, the coatin is usually applied by immersing the container i 2,319,474 MACHINE roa COOLING COATED M m if CONTAINERS I E A E-romcr 3.;

, i f :o'm'i l riceg Fulton NiY assignor to Oswego Falls Corporation; Fulton, N. Y., a corporation .ommnatpuaaan Jul 2e,* 1939, Serial No.

286,6375 Divided and this l iaiaserm No. 440,185

I "ignit ng (01. 62-104) This invention has to do witha machine forcooling containers which have beencoated. Containers formed of fibrous materials, such as paper board, areusually coated with a substance to make the container non+absorbentandliquid tight. The coating materialrmayconsist'ot a wax, suchaas paraflln,:or alacquer formedof synthetic resinous material. a This application is J a a division of myapplication Sr.-No;;286,63-7,

in a bathof molten waxand in order to obtain l the desired finish and tohastenflthe setting of the, wax to permit volumeproduction the containers, immediately aiter being coatedpareim- "mersed in a cooling medium which may also contain a substance to sterilize thecontainer.

' The lacquergcoating may. also be applied by the immersion method, but,,more .Irequently is sprayed onto the container and, in-both instances,

the coating is sometimes chilled or cooled, by

While this invention is suitable ior] carrying" it out variouscooling processe'ait has to do more 1 a plication April 23,

embodying my invention, with parts removed and parts shown in section.

Figure 2 is a top plan view of the machine.

Figure 3 is an end elevational; view of themachine. Figure 4 is an enlarged fragmentary side elevationalview of aportion 0; the conveyor mechanism looking to the left Figure 3; H

Figure 5 is avertical sectional view of one of i the container carrying members. 1 3

Figure ,6 is an, inverted planview of the con-- tainer carrying member.

;The machine consists of a base In on which are vertically arranged columns II on which is mounted a horizontallyextending support I 2. A vertically arranged shaft 13 is joumalled at its lower, end in a bearing I! mounted on thebase and "at its upper end in one endoi the support member l2. A pairof sprocket wheels l5, l6, are secured to and rotatable with the shaft l3, and a similar pair of sprockets I1, I 8, are journalled at the other end or the member l2. The shaft i3 is rotated at a [proper speed, by a motor 20, mounted in the base.

l Thecontainer conveyor consists of an upper chain 2 I, trained about thesprockets I5, I], and a particularly with a machine for cooling eon-Q L tainers by immersingisafme" liquid.

'I'he invention has as, an objectja machine of the type referred to embodying a niechenismfor successively conveying the coated containers mm a loading station through the cooling medium and discharging thecontainers at a discharge a station, the operation being continuousat relatively high speed and the containers being handled irom their top edges, whereby a the cooling medium, when in interior of the container.

e 'lhe invention further includes an particularly simple and efficient means ior automaticallyen gaging theftops of, the coated containers and supporting; the "same during conveyance through a the cooling medium and subsequently releasing nqumram, does not enterthe thecontaineraafter the, coating; has become properly chilled. The inventionconsists in theno'velfeatures and 1 1 in the combinationsand constructions hereinafter set forth and'claimed. i describing this'invention, reference is made tothe accompanying drawings in which like chariacters designate corresponding parts in. all'the views. it 1 Figure 1 is a side elevatlonal view or almachine 3 apertures, or otherwise provided toreceive spindles24 and permit the same to moveverticalh inwthe brackets without rotation. Duelto the iact that the sprockets l5, [6, are secured to the shaft l3, both chains operate synchronously spindles are movedinthe orbital path by the chains, the spindles pass'over a container load,

.ing station, are thereafter lowered to immerse the containers carried by the spindles into a tank contalninga-cooling medium and subsequently the spindles are elevated and the containers re- 1 leasedat a discharge station.

\ 'lhe container loading ation is here repre? sented as a turret on which the containers are placed as they come from the coating mechanismv Thisturret is rotated in ,synchronism with the movement of the spindles, by means of abhain 3| trained over a'sprocket 32 secured to shaft, IS. The arrangement at the loadin station may be any structure whichwillpresent the coated containers in proper timed relation to the movement of the spindles 24.

The cooling medium is arranged in an elongated tank 35 mounted upon the rear portion of the base, the arrangement being such that the containers are maintained in the cooling medium for a substantial portion of the travel of the orbital movement of the spindles. The tank is preferably provided with an overflow member 36 discharging through a pipe 3"! into a sump formed in the lower portion of the base i and which preferably contains one or more refrigerating coils 38. The cooling medium is circulated by being pumped out of the sump back into the tank by a pump 39 operated by a suitable motor 40 arranged in the base H), the pump being provided with a suction pipe 4| and a discharge pipe The discharge station is located in proximity I to the shaft I3 on the opposite side of the conveyor from the loading station 30. As here shown, thedischarge station is in the nature of a conveyor belt 44 trained over a pulley 45 mounted on the frame of the machine, the belt" extending to a suitable collecting table, or the like, not

shown.

The conveyor further includes a track arranged coextensive with the chains 2I, 22, the track being supported by a number of angle brackets 46 extending laterally from the support member i2. The track is channel shaped in cross section to receive rollers 48, one of which is secured to each of the spindles 24. The track consists of upper sections 50 extending along each side of the support member i2 at the forward portion thereof in proximity to the upper chain 2|. These side portions 50 are connected by a curved portion 5| extending around the forward end of the frame in a plane slightly above the sections 50 and is connected thereto by short inclined sections 52. Accordingly, while the spindles 24 are traveling about the front end of the machine, they are in elevated position.

The track further includes a rear section extending around the rear portion of the machine above the tank 35 and in the plane of the sections 50. There is also a lower track section 56 arranged below the section 55, that is in proximity to the lower chain 22, and is connected to the section 50 by inclined portions 51. This arrangement is such that when a container C is secured to the lower end of one of the spindles 24 at the loading station, the roller 48, associated with that spindle, travels along the rear track section 50, down the rear incline section 51 around the lower track section 55, during which time the container is positioned in the cooling medium, then up the forward inclined section 51 along the forward section 50,1ip the forward inclined section 52, to the front circular portion 5| at which time the container is discharged upon the belt M.

If in the event however that a spindle does not engage a container at the loading station, the spindle is maintained 'in its elevated position throughout its orbital movement. This is accomplished' by a switch member 5a interposed between the rear track sections 55, 55. The switch is pivotaily mounted as at 59 and is provided with a tail piece 50 terminating in juxtaposition to a solenoid 5|. The switch member 58 is normally maintained in the position shown in Figures 1 and 4, and in thisposition the rollers 48 are directed on the downwardly inclined rear section 51 of the track. When there is no container carried by a spindle however, the solenoid is energized, in a manner hereinafter explained, to move the tail piece 50 upwardly as indicated in dotted outline Figure 4, causing the switch member 51 to move downwardly and from a continuation of the track 50, whereby the roller of the spindle will'be directed onto the track section 55. The reason for this arrangement is to keep the container carrying members on the lower ends of the spindles away from the cooling medium to prevent the likelihood of some of the medium being splashed on the carrying member-and thereafter, the possibility of the cooling medium being carried to the interior of a container. It is common practice to use a germicide in the cooling medium, such as chlorine, the presence of which in a container might render the contents of the container distasteful.

A switch member 53 is arranged between the track sections 55, 50, on the front side of the machine. This switch member bridging the upper end of the inclined-section 51 and being normally positioned, as shownv in Figure 1, by a spring at. The purpose of the switch member 63 is to form a continuation of the upper track section 55 to permit a roller traveling on that track section to pass onto the forward section 50.

The container carrying members consist of a body portion 10 secured to the lower end of each of the spindles 24. The body I0 is formed with depending circumferentially spaced apart ribs II for entering the mouth of the containers, and with radially extending bosses 12 formed with apertures to slidably receive pins 13, the upper ends of which are secured into a disk 14 having a central clearance aperture 15 and a depending.

skirt portion or flange 16. The pins I3 are of such length that when the chuck or container carrying member is moved into engagement with the top of a container, the lower ends of the pins 13 engage the top edge of the container and are moved upwardly to position the disk I4, as illustrated in Figure 5. The container carrying members are completed by a plurality of spring I members 18 secured at their upper ends to the body ill as by screws I9, and the lower ends of the springs 18 are notched to receive a bead at the top of the' container, if the container is formed with such a bead, as shown in Figure 5. The function of the spring members 15 is to firmly, but 'detachably, hold the containers to the carrying members.

As previously stated, when the body 10 of a container carrying member enters the top of a container at the loading station 30, the pins 13 are moved upwardly thereby raising the disk 14 to the position shown in Figure 5. The flange 16 is formed with a'notch or cut-out portion 8L1 The solenoid 6! is energized by a switch 82 having an actuating member 83 depending and providedat its lower end with one or more laterally extending arms 84. The switch 82 is positioned in proximity to the rear run of the lower conveyor chain intermediate the loading station 33 and the forward end of the cooling tank 35.

' The arrangement is such that the end of .the

arm 84 will pass through the notch 8| in the container carrying member when it is carrying a container. That is, when the disk 14 is in its upper position, as shown inFigure 5. Under these circumstances, the switch member 58 directs the roller associated with that spindle on the downwardly inclined section 51 of the track,

as shown in.Figure 4, and the roller then travels 6| of swit a hat sp dle W 1 be d re nn he upp r tr c a i cooling such as to; prevent the andsaid discharge station, wmember securedito the lower fspindies "engagement withva cure the container Itothe spindle, and means said loading station,

tha'container in the coolillglmedium.

w ever a container carrying ,rnember does 1 ngage ,afcontainer atjltl' iefilo'ading station the .diskfill will be positionedonthetop of on the lower rear; section ittof thetrack posi- I t m carried by the frame" and cooperable withsa-id spindles during "the orbital movement thereof to causethe same to move'said container carrying the body and accordinglygthe notch in w be M M vise t e s tc m ss will be eneagedfand the switch willflbeactuated, compl t ng a {tir d rem the time as, three amregjsgto the s lenoid, and

hf and thetroller associated with d thus 'theiempty. container carry ease edium in tank 3 5,

rvins mb nd s s asltaeneeee the disk ll 'andforce the same downwardly; causing the pin 13 topush the, lcontaineriout of' the rrina m be I a drerrmit t, dr fp on thedischgrge belt 1-, lt will beapparent thatthis cooling device ope ra c nuou y a d au 0 a11 d 1 sraz heli t i s by the tan atth l e ing, station, 1 submerging them in the ,cooling me dium: in-,itank 35;, elevating or, withdrawing the on-the1dischargeb t! keepingy thel for cooling coated containers the frame containing a cooling medium, a con? tainer loading station, a' container discharge station, a seriesof vertically movable spindles, means operable to move saidspindles in an orbital path over said loading. station and saidcooling tank a container carrying and being operable when moved "into container. to detachably seoperable, during movement ofsaid spindles over to effect a partial downward movement of the, spindles toposltion thereon- "=-tainer carrying members in engagement with the containers at said'station and to effect further downward movement movementof the same oversaid-cooling tank to i position the containers, it i -andto subsequently move in the coolin medium ed position, and

tainers carried thereby at said discharge station.

2. Afmachine for cooling coated containers ,0

the frame containing a cooling medium; a con- 3 tainer loading station and a container discharge series of vertically movable spindles,

station, a I each of said spindles being provided with a con- ,tainer carrying member at the lower endthereof and operable upon engagement with, a container to detachably secure the same to i the spindle,

1 means operable to move said spindles successively in anorbitalpath over the loading station, the

will completegits orbital bani, in the salon e ave,theatres. f 1

, f the discharge station, t ere iska roller 10;,depending ,in their-path of thecontainer car-- end of-each' ofsaid of said spindles durin said spindles to elevat means operable to cause said container carrying members to release the conbelow the plane of, the switch (actuating, arm 84,

and as ,thelspindlei advancesjon .1

thasolenoidwill thereupon elevate theftail piece i said containers while the same are secured to said .spindles.

l comprising a frame, a tank mounted on the frame when moved into engagementwith a container to detachably secure the 'sameJto'the spindle, a {track carried by the frame, ,a roller secured to each of said spindles andoperable in said track,

comprising a suitable frame, a tank mounted on a members intoengagement with containers at said loading station, and to subsequently lower said containers in the coolingmedium in said tank during-.alportion of said orbital movement and to'thereafter remove the containers 'from the cooling medium, and means operable as each of i said spindles approaches said discharge station to cause said container carrying members to re- 1 lease the containers.

3.34 machine for cooling coated containers comprising a suitable frame, a series of vertically movingspindles, a container loading station and i a container discharge stationJmeans operable to. move said spindles inangorbital path successively' over-- said stations,a container carrying membersecured to the lower end ofeach of said spindles and being operable upon engagement withia container to detachably secure the same to the spindle, means cooperable during such orbital movement ofthe spindles to cause the same, to move downwardly to position the container carrying; members carried thereby into engagement with the containers at said loading station, and means' operable to cause each container carryingmember to release the containers at said "discharge station, and means operable to cool,

4! A machine for coolingcoated containers containing a cooling medium,;a container loading station and a container; discharge station, a

,erable'to successively movesaid spindlesin an ore th frame, acontainer carrying member operable said rollers and track-being cooperable to effect partial downward movementof said spindlesduring movement of the same over said loading station to cause-said container carrying members to engage the containers at said station and to thereafter effect further downward movement of said spindles during movement of the same over said tank to position the containers carried by said spindles in said cooling medium, and to subsequently move said spindles to elevated position to remove the containersfrom the cooling medium, and means cooperable with said container Jcarrying members to cause the same to release the cooled containers at said discharge station;

5. A machine for cooling coated containers,

comprisinga suitable frame, a tank mounted on a the frame containing a cooling medium, ,a container loading station and a container discharge, station, a series of vertically movable spindles a and means operable to move said spindlesin, an

orbital path over said loadingstatiomsaid cool- I ing tankand said'discharge station, a container carrying member secured to the lower end of each of said spindles and being operable upon engagement with a container to detachably securethe same to the spindle, a track: carried by the frame and being formed with an elevated section, a downwardly inclined section arranged in'juxtaposition to said loading station, said track being also formed with an upper and v 3 cooling-tankand the discharge station, and a series ofzvertically movablespindles,meansopyer said loading station, cooling tank and discharge station, a track carried by the lower section in juxtaposition to said cooling tank; a movable switch member arranged in said track intermediate said inclined section and said upper and lower sections, a, roller secured to each of said spindles and arranged to travel in said track duringthe orbital movementof said spindles, said inclined section being cooperable track also including an inclinedsection extending upwardly from said lower section and being cooperable with said rollers to elevate said spindles to remove containers carried thereby from said tank, and means cooperable with said container carrying members to cause the same to release the cooled containers therefrom.

6. A machine for cooling coated containers comprising a suitable frame, a tank mounted on the frame containing a, cooling medium, a container loading station, a container discharge station, a series of vertically movable spindles and means operable to move said spindles in an orbital path over said loading station, cooling tank and said discharge station, each of said spindles being provided at their lower ends with a container carrying member operable when moved into engagement with a container to detachably secure the same to the spindle, track means carried bythe frame and being cooperable to effect vertical movements of said spindles 'to cause said container carrying members to the orbital travel of the spindles and thereafter remove the containers from the cooling medium, and means cooperable with said container carrying member's tocause the same to release the containers at said discharge station.

'7. A machine for cooling coated containers comprising a suitable frame, a tank mounted on the frame containing a cooling medium, a container loading station and a container discharge station, a series of vertically movable spindles and means operable to move said spindles in an orbital path over said loading station, said cooling tank and said discharge station, a container carrying member secured to the lower end of each of said spindles and being operable when moved into engagement with a container to detachably secure the container to the spindle, means operable to effect relative vertical movement between containers at said loading station and said spindles to efiect engagement of said containers by said container carrying members,

- l and means cooperable with said spindles to cause the same to move successively downward to position the containers carried thereby in said cooling medium for a portion of the orbital travel of the spindles and thereupon effect vertical movement of said spindles to remove the containers from the cooling medium, and means cooperable with said container carrying memben: to cause the same to release the containers at said discharge station.

JOHNF. PRICE. 

